Black photosensitive resin composition, photosensitive resin layer, and display device comprising the same

Abstract

A black photosensitive resin composition includes (A) an alkali soluble polyimide-polyamic acid copolymerization resin; (B) a multi-functional monomer; (C) a photopolymerization initiator; (D) a black colorant; and (E) a solvent, a photosensitive resin layer manufactured using the same, and a display device including the photosensitive resin layer.

What is claimed is: 
     
       1. A black photosensitive resin composition comprising:
 (A) an alkali soluble polyimide-polyamic acid copolymerization resin; 
 (B) a multi-functional monomer; 
 (C) a photopolymerization initiator; 
 (D) a black colorant; and 
 (E) a solvent, 
 wherein the copolymerization resin has a unsaturated double bond at at least one terminal end, and 
 wherein the unsaturated double bond is derived from a compound of Chemical Formula 1 to Chemical Formula 4, or a combination thereof: 
 
       
         
           
           
               
               
           
         
         wherein, in Chemical Formula 1 to Chemical Formula 3, 
         R 1  to R 5  are the same or different and are each independently a hydrogen atom or a substituted or unsubstituted C1 to C10 alkyl group, and 
         L 1  to L 5  are the same or different and are each independently a single bond or a substituted or unsubstituted C1 to C10 alkylene group. 
       
     
     
       2. The black photosensitive resin composition of  claim 1 , wherein the copolymerization resin comprises polyimide and polyamic acid in a mole ratio of about 1:99 to about 95:5. 
     
     
       3. The black photosensitive resin composition of  claim 1 , wherein the copolymerization resin comprises polyimide and polyamic acid in a mole ratio of about 40:60 to about 60:40. 
     
     
       4. The black photosensitive resin composition of  claim 1 , wherein copolymerization resin is represented by Chemical Formula 5: 
       
         
           
           
               
               
           
         
         wherein, in Chemical Formula 5, 
         X 1  and X 2  are the same or different and are each independently a substituted or unsubstituted tetravalent alicyclic organic group or a substituted or unsubstituted tetravalent aromatic organic group, 
         L 6  and L 7  are the same or different and are each independently a single bond, a substituted or unsubstituted C1 to C10 alkylene group, a substituted or unsubstituted C3 to C10 cycloalkylene group, or a substituted or unsubstituted C6 to C20 arylene group, 
         each R 6  is the same or different and each is independently a substituted or unsubstituted acrylic group, a substituted or unsubstituted methacrylic group or a substituted or unsubstituted norbornene group, and 
         m and n are the same or different and are each independently an integer ranging from 1 to 100,000. 
       
     
     
       5. The black photosensitive resin composition of  claim 1 , wherein the copolymerization resin has a weight average molecular weight of about 3,000 g/mol to about 100,000 g/mol. 
     
     
       6. The black photosensitive resin composition of  claim 1 , wherein the copolymerization resin is mixed with another alkali soluble resin comprising a novolac resin, a bisphenol A resin, a bisphenol F resin, an acryl-based resin, a silanol group-containing resin, a silsesquioxane-containing resin, or a combination thereof. 
     
     
       7. The black photosensitive resin composition of  claim 1 , wherein the black colorant comprises an aniline black pigment, a perylene black pigment, a titanium black pigment, a cyanine black pigment, a lignin black pigment, a lactam-based organic black pigment, a RGB black pigment, a carbon black pigment, a black dye, or a combination thereof. 
     
     
       8. The black photosensitive resin composition of  claim 1 , wherein the black photosensitive resin composition further comprises a photosensitizer. 
     
     
       9. The black photosensitive resin composition of  claim 1 , wherein the black photosensitive resin composition comprises about 1 parts by weight to about 100 parts by weight of (B) the multi-functional monomer, about 0.1 parts by weight to about 100 parts by weight of (C) the photopolymerization initiator, about 10 parts by weight to about 400 parts by weight of (D) the black colorant and about 100 parts by weight to about 5000 parts by weight of (E) the solvent, each based on about 100 parts by weight of the (A) copolymerization resin. 
     
     
       10. The black photosensitive resin composition of  claim 1 , wherein the black photosensitive resin composition further comprises malonic acid, 3-amino-1,2-propanediol, a silane-based coupling agent, a leveling agent, a fluorine-based surfactant, a radical polymerization initiator, or a combination thereof. 
     
     
       11. A photosensitive resin layer manufactured using the black photosensitive resin composition of  claim 1 . 
     
     
       12. A display device comprising the photosensitive resin layer of  claim 11 .